5 chickens 4 eggs daily?

I decided to join BYC because I realize I come to this site to find answers to my questions quite often. I have a few questions and need some answers.

I have five chickens, 2 Rhode Island reds, barred rock, golden sex link, and an Orpington. I get 4 eggs pretty much daily. Not sure why and I know they are all hens. Is this normal?

I have half the coop with a temporary roof to keep out the rain. The floor is dirt with grass clippings and food scraps. It gets wet, doesn't smell but I'm concerned that it might be too wet. Can the floor be too wet for the chickens? (We live around Sacramento).

Greetings from Kansas, howellchickens, and ! Great to have you with us! 4 eggs from 5 birds is pretty typical for in their prime, first year layers. I assume you get 5 in a day once in awhile? You will likely find production will decrease with shortened hours of daylight, colder temps, and/or the molt.
I terms of your coop floor, sustained mud isn't good for birds. Lots of folks put down sand for drainage.
You can touch base with other CA chicken keepers in your state thread in this link: https://www.backyardchickens.com/f/26/where-am-i-where-are-you
Best wishes and thanks for joining BYC!

Hello there, and welcome to Backyard Chickens! 4 eggs a day sounds pretty typical for the breeds you have there. Sex links are excellent layers, but the Orpingtons and Barred Rocks do not have as good production, so four sounds reasonable. I have 19 hens all of laying age, and I get about 14 eggs a day from them. They are all like yours, heavy, dual purpose heritage breeds that just are not bred for production like Leghorns. I hope you enjoy BYC!